Home / 13,340.90-18,402.50-8,627.96

Finding the Fourth Proportional to 13,340.90, 18,402.50 and 8,627.96

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Solution

The fourth proportional to 13,340.90, 18,402.50 and 8,627.96 is: 11,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.90 : 18,402.50 = 8,627.96 : x
  2. Step 2: Convert to fraction form
    13,340.90/18,402.50 = 8,627.96/x
  3. Step 3: Cross multiply
    13,340.90x = 18,402.50 × 8,627.96
  4. Step 4: Simplify right side
    13,340.90x = 158,776,033.90
  5. Step 5: Solve for x
    x = 158,776,033.90/13,340.90
  6. Step 6: Final answer
    x = 11,901.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.